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Find the least fraction, which must be multiplied to (124 12 +3616 116 +28) to make it an integer.
Options:
A .  241
B .  161
C .  731
D .  173
Answer: Option B
:
B
(124 -12 +3616 -116 +28)
=6412+5416116+28
Taking LCM of denominators and solving,
248+541+416=7316
Now, If we multiply 7316 by 161, it becomes 73, which is an integer
Hence, 161 is the required fraction.

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